Dust-arrester for air-brakes.



No. 730,824. P-ATENTHD JUNE 9, 1903. T M. HENDERSON. DUST ARRESTER FOR AIR BRAKES.

APPLIOATION FILED 00'1'. 24,1902.

N0 MODEL.

' MGM): {0,1,18,56,35 Thowfljfizzderson.

flahrummv WM f I 23272 No. 730,824. Patented June 9, 1903.

UNrreo STATES PATENT Orrrcn,

THOMAS MARSH HENDERSON, OF PORTSMOUTH, VIRGINIA, ASSIGNOR OF TWO-THIRDS TO CHARLES PADDOOK STORRS, OF WILMINGTON, DELA \VARE, AND ROBERT RANDOLPH HICKS, OF NORFOLK, VIRGINIA.

DUST-ARRESTER FOR AIR-BRAKES.

SPECIFICATION forming part of Letters Patent No. 730,824, dated June 9, 1903.

Original application filed June 27. 1902, Serial No. 113,524. Divided and this application filed October 24, 1902. Serial ITO-128,651. (No model.)

To all whom it may concern: 7 to the steam-cylinder 1 through a supply-pipe Be it known that I, THOMAS MARSH HEN- 5 from the boiler 6 in the usual manner. 5 DERSON, a citizen of the United States, resid- The air-filter 7 comprises a liquid-chamber ing at Portsmouth, in the county of Norfolk 8 and a superimposed drying-chamber 9 the 5 and State of Virginia, have invented a cersaid chambers being connected, preferably tain new and useful Dust-Arrester for Air by screw-threads, with a coupling-head 10,

A Brakes, of which the following is a specificaforming an imperforate division or partition 55 tion, reference being had therein to the acbetween thetwochambersSand 9. Thecoupcompanying drawings. ling-head 10 is provided with circumferential 10 This invention relates to dust-arresters for flanges 11, spaced apart to form an intervenair-brakes and the like, the object in view being annular recess or groove 12, in which is ing to provide simple, effective, and reliable received a clamping-hand 13, which passes 60 means for filtering air during its passage from around the air-cylinder 10, as shown in Fig. the pump to the storage-tank or main reser- 1, and supports the air-filter at one side there- 1'5 voir, removing moisture and impurities, such of. Ihe air from the air cylinder passes as dust and other foreign matter, and deliverthrough the pipe 14 and enters the lower poring the air to the brake devices in a dry and tion of the liquid-chamber 8 through agoose- 65 perfect condition. neckl5, which discharges the air into the ex- The subject matter of this invention is treme lower portion of the liquid-chamber 2o taken from my prior application, Serial No. and beneath the surface of a body of water, 113,524, filed June 27, 1902, for air-pump lu- (indicated at 16.) The air percolates through bricator and dust-arrester for air-brakes, and the water 16 and upward through a superim- 70 forms a division of said application. posed body or layer of oil 17, the effect of \Vith the above and other objects in view, which is to catch and remove from the air any the nature of which will more fully appear impurities, such as dust. At or near the as the description proceeds, the invention junction of the air-pipe 14 and gooseneck 15 consists in the novel construction, combinathere is arranged a drain-cock 18, by means 75 tion, and arrangement of parts, as hereinafter of which the water 16'containing the impurifully described, illustrated, and claimed. tiesmay be drawn 0d at intervals.

In the accompanying drawings, Figure 1 is Arranged in the upper portion of the liquida side elevation of a portion of a locomotive, chamber 8 is a screen-box 19. At one side is showing the air filtering device associated a suitable flange to receive and hold a lami- 8o therewith, together with the connections benated screen 20, composed of a plurality of tween the filtering device and the pump. Fig. sheets or sections of meshed-wire fabric, pref- 2 is an enlarged vertical diametrical section erably of copper or brass and arranged flatthrough the body of the dust-arrester or filter. wise against each other, as shown in Fig. 2.

Like reference-numerals designate corre- The screens 20 prevent the air from moving 85 sponding parts in both figures of the drawtoo rapidly, and thereby obviate the agitation ings. of the oil and water in the liquid-chamber.

40 Referring to the drawings, 1 designates the After passing the laminated screen the air steam-cylinder of an ordinary air-brake pump, passes through a connecting-pipe 21, leading such as is used on locomotives for compression into the lower portion of the drying-chamber 7 0 of air in a storage-tank (indicated at 2) pre- 9, in the upper portion of which is arranged paratory to using the same in applying the a drying-cage 22, preferably in the form of a brakes. double cone and composed of meshed wire 3 represents the air-cylinder, in which operfabric, the cage being filled with absorbent ates the usual air-compressing piston, the rod material, such as wool and hair, through 5 of which is shown at 4, steam being admitted which the air must necessarily pass before entering the air-pipe 23, which leads from the filter back to the main reservoir or storagetank 2, above referred to. The pipe 23 is provided at a suitable point with a regulating-valve 24. The con meeting-pipe 21 is provided at a suitable point with a coupling-nut 25 to enable the parts of the filter to be disconnected and removed for cleaning.

The air-filter removes all moisture and dust and other impurities from the air before it reaches the storage tank, and the screen steadies the movement of the air passing through the filter, so as not to disturb or agitate the filtering liquid in the bottom of the liquid-chamber. Any suitable material may be placed in the drying-cage to remove any slight moisture which may still remain in the air after it passes into the drying-chamber.

It will of course be understood that the device hereinabove described is susceptible of changes in the form, proportion, and minor details of construction, which may accordingly be resorted to without departing from the principle or sacrificing any of the advantages of this invention and also that the principles of the invention maybe applied to other devices besides air-brakes.

Having thus described the invention, what is claimed as new is 1. The combination with an air brake pump, of an air-filter comprising a liquidchamber, a superimposed drying-chamber, an interposed imperforate coupling-head, a connecting-pipe between the liquid-chamberand drying-chamber, and means for ad mitting-air to the liquid-chamber and conducting the same from the drying-chamber, substantially as described.

2. The combination with an air brake pump, of a filter comprising a liquid-chamber, a drying-chamber, an intervening imperforate wall, a connecting-pipe between the liquid-chamber and drying-chamber, a gooseneck for admitting air to the lower portion of the liquid-chamber, and a drying-cage arranged in the drying-chamber, substantially as described.

3. The combination with an air-brake pump, of an air-filter comprising a liquidchamber, a drying-chamber, an intervening imperforate wall, a connecting-pipe leading from one chamber to the other, means for admitting air to the liquid-chamber, a screen covering the exit from the liquid-chamber, and a cage communicating with the outletpipe in the drying-chamber said cage being filled with absorbent material, substantially as described.

4. The combination with an air-brake pump, of an air-filter comprising a liquidthereof, and comprising a liquid-chamber, a

drying-chamber, a connecting-pipe between the liquid and drying chambers, a gooseneck for admitting air below the surface of the liquid in the liquid-chamber, an absorbent cage covering the outlet from the drying-chamber, and a laminated screen controlling the connecting-pipe between the liquid and drying chambers, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS MARSH HENDERSON.

Witnesses:

J. J. MOORE, R. C. ROBINSON. 

